The worlds most expensive stuff!

Most Expensive Cell Phone: iPhone 3GS Supreme. $2.97 million

Stuart Hughes—who also designed the most expensive television—made headlines in 2009 when he crafted a 22-carat gold iPhone studded with 53 diamonds for an unnamed Australian businessman for £1.92 million. More recently, he says, he was commissioned to make an even pricier version of the phone in 18-carat rose gold with hundreds of diamonds, including a single-cut, 7.1-carat diamond for the main navigation button.

Most Expensive Television: PrestigeHD Supreme Rose Edition. $2.3 million

Swiss luxury television maker PrestigeHD asked Stuart Hughes of Goldstriker International to design a spectacular piece for the company, says Hughes. So he took a 55-inch PrestigeHD television and covered it in 28 kilograms of 18-carat rose gold and 72 diamonds. Alligator skin was hand sewn into the bezel. This limited edition TV, introduced just this year, surpasses Hughes' £1 million television for PrestigeHD, which uses 22-carat yellow gold and 48 diamonds. PrestigeHD CEO Simon M. Troxler says the company is close to closing its first contract for the Supreme Rose Edition and "we are very confident that the limited edition of only three TVs will be sold out soon."

Most Expensive Motorcycle: Dodge Tomahawk V10 Superbike. $700,000

The Dodge Tomahawk, a 1,500-lb. motorcycle with four wheels, has a Dodge Viper's V10 engine and can go from zero to 60 mph in 2.5 seconds, according to Edmunds.com. The top speed is estimated to be more than 300 mph. The vehicle, which made its debut at the 2003 North American International Auto Show in Detroit, was reportedly priced at $550,000, but a Dodge spokesperson confirmed to Bloomberg Businessweek that two units were sold at an even higher $700,000.

Most Expensive Speakers: Transmission Audio Ultimate System. $2 million per pair


With a total of 12 units—four dipole subwoofers, two dipole mid-woofers, four dipole medium-frequency and high-frequency ribbon panels, and two dipole high-fidelity super ribbon panels—Transmission Audio's Ultimate speaker system is a hefty piece of equipment, spanning 37 feet and weighing 5 metric tons. All units are made from aircraft aluminum and have stands in polished red or black granite. The set was introduced in late 2009, and so far two pairs have been preordered, says Bo Bengtsson, president of Transmission Audio. None has yet been delivered, as the assembly time is about six months.